Hello,
My yotaphone had some big issues after I've changed earpiece, the actual situation is:
- With plugged battery phone is completely dead, nothing happen pressing the keys and the pc recognize it as an usb input device (no adb/fastboot support)
- If I disconnect the battery connector and then plug in the charger, phone starts a bootloop "powered by android", BUT if I plug in battery DURING bootloop the phone boots correctly to the system but battery is 0% (I bought a new battery and I'm sure that there's some charge stored) and if I disconnect charger it says battery low and tuns off
- I've noticed that if I put phone in download mode>connect battery and then disconnect charger, phone stays on and it happens also during "optimizing apps" step during the first boot after update.
Now, I'm not sure of that but I think that it's an hardware issue (like the "daemon" that reads battery amperage doesn't work anymore) but I need your help tho confirm this supposition and even some things to try before throwing away my beloved yotaphone 2
p.s. sorry for my english
My YP2 has had problems with QI-Charging and random reboots since two weeks, maybe from falling down..
Two days ago, the YP2 got very hot, the battery has blowed and the YP2 was in bootloop.
After changing the battery, the YP2 will run like new again.
problem identified!
Finally I've discovered what's wrong:
battery connector is partially broken and the central contact doesn't touch battery terminal.
anyone have an idea if I can find this connector or if I have no chances to find it?
Related
2 days ago i had my cingular 8125 plugged into a charger . when i woke up it was off and dead, still plugged in?
now when i plug it in (to the stock charger) the red light comes on, but if i take the battery out, it stays on. if the battery is in, it is on. but i cant turn it on. ive left it for 15 hours now, and still nothing
even tried another battery.
when i first put the other battery in it turned on, was booting, but then died. probably cuz the battery was dead. but i had it plugged in as soon as i turned it on.
now the same thing happens.
any ideas?
i also thought i smelled something burnt. like if you have ever had a laptop that had a bad a/c connector and would heat up a bit, or even smoke!
dont know if it was my imagination or what?
thanks in advance
dan
T mobile MDA shows RED LED
that is strange that you post this today, because I just received T-mobile MDA unit from 3bay that has a similar problem.
-The phone does not turn on when I press the power button.
-It does not respond to a soft reset or a hard reset.
-With the battery in, I connect the AC charger to the phone and for about 1-3 seconds the charging LED color is RED. THe LED turns off and I can not get the same result if I reconnect the AC charger.
The only visible sign of life this MDA unit has is:
-with the battery out and the AC charger connected, when the USB is removed to the point where it is not connected to the MDA, the charging LED light flashes red for a split second and the screen flashes white for a split second as well. [I hope this is a sign that there's still life in this MDA, but i'm thinking my unit is truly a brick..]
From all the websites I've searched, this does not seem to be an issue, although for me it is a scary one! Anybody that can help would be much appreciated because I want a working MDA not a dead one
EDIT: It turns out my non-booting MDA was due to a faulty vibrator and flashlight MDA part. After removing these two pieces that are connected to the back cover of the MDA housing, the MDA booted up with no problem.
danrw84 said:
2 days ago i had my cingular 8125 plugged into a charger . when i woke up it was off and dead, still plugged in?
Click to expand...
Click to collapse
I'm in exactly the same position - left phone on charge overnight two days ago and in the morning it was completely dead. I have managed to get it to power on for about 2-3 seconds on one or two occasions but now it won't do a thing
Not sure if this will help, but have you tried to push that soft reset button that you have to to push with your stylus when it is plugged in?
Sounds stupid, but my power button is completely dead and I thats how I have to start mine up. I also have to pop out the SD card to get the screen to come out of sleep mode!
I might not work, but hey...worth a try.
Well, I eventually got back up and running. Turns out the battery was completely dead. I used the 9v battery trick and then used my USB charger to get the battery fully charged and all is well.
This leads me to query how do I now charge my phone when I don't have access to a PC? I was using a standard AC wall charger and the phone showed that it was charging but due to the fact that the display stays lit whilst on external power, this eventually killed the battery as the charge indicator appeared to be false.
*as posted verbatim in another thread*
WHAT IS THIS 9 VOLT TRICK YOU SPEAK OF?!?
funny...i'm having the same problem with 2, what were perfectly fine, wizards.
which is what brought me to this forum post.
These two devices were turned off and sat in my desk for months as they were not needed. They were perfectly good, successfully unlocked and upgraded from the advice/steps/tools provided here (thanks!). They were my primary personal and work devices until i was given the option to try a few iPAQs.
Now that I want to go back NEITHER device will boot. On the original chargers (both wall and usb) both devices will display the red light as shown in the pic above, will not boot normally, or via the 2 or 3 button methods common for these devices. The batteries do not get warm, which tells me that they are not getting current...which makes NO sense if i'm using 4 different stock charging options (2 wall and 2 usb) in different locations. One expect some variable would work to eliminate some oddity, but nothing is working.
something odd is going here. how can 2 perfectly good devices and charges suddenly crapout? I could really believe it's the battery, but one is grand spankin new (only used for a month)! Both have the main board die? Both not recognizable on any computer?
Is it possible that the backup battery is causing this? Can it me charged same as the standard if its drained? I know i'm grasping at straws here, but this odd a coincidence.
FOUND FIX
okay..this was too simple.
for some reason the USB will not provide enough"juice" to pop these out of their sleep.
I have been using this great little charging system made by good old Radio Shack that is a single plug with different adapters for all different devices...i've been using it for my iPAQ's, Blackjacks, BB's, ect. SO as a last resort i went and got the CORRECT adapter (as there are many mini usb adapters available) and SHAZAM!!! they boot right up!
don't ask me why the stock wall chargers will not work, but these RS iGo systems are the trick!
i'm going to link to the other similar issue in hopes any other folks having the same issue can benefit from this.
Today my Prophet crashed while charging and showed a white screen. After that it booted again and charged normally until the battery meter showed 100% charge status.
I took it off the charger and used the device when it crashed (like there is not enough battery for it. the display showed only every second pixel-line and got less and less saturated).
After removing the battery and placing it back it does not turn on anymore. If i remove the battery the screen does some kind of white flash (this is reproduce-able and happens every time I remove it).
If I connect the charger to the Device there is no reaction of any kind. It does not indicate a charging light or something like that and it is still not possible to turn the prophet on again.
Has anyone an idea what I could do about it?
edit: seems solved. I think the battery was to empty to be recognized by the device and therefore it was sufficient to recharge it a bit (I used an external battery charger for my diamond for this) and after that it got recognized by the prophet again.
Hello,
please help me with an advice: since today afternoon, my HD2 (European type) looks dead... I have an Android NAND ROM (with sense, I think from CM7 series, but I don't remember anymore, cause it worked perfectly since a few months). Suddendly, as I wanted to recharge the battery today afternoon, I've observed that the LED indicating the charging is not on! As I've tried to turn it on (wake up), nothing happened, black screen, no LED, no buttons light. I have put out the battery and back in, tried a reset (red small button near the battery), but it simply don't want to turn on! I have checked the charger with another HD2 from a friend and the charger is ok... What can I do about it? I have really no idea what's going on , cause there is no reason for such a behaviour (like bad flashing trial or similar).
Thank you in advance for every help!
Conrad
...nobody?
I want to add that if I connect it with my pc through the usb cable, nothing happens as well... and my pc won't recognize it (no reaction at all)...
Please, nobody else had such problems?
Your friend has hd2? Try their battery, if it works your battery is flat (can't charge when off when magldr installed)
If the other battery doesn't work check battery pins carefully.
Thanks for your reply, samsamuel.
I have already tried to use other battery, but it doesn't change anything. What do you mean with "checking pins"? The battery contacts, on the battery and on phone are looking very good (the phone is only about 7 months old)...
Sometimes one of the three little pegs on the phone that the battery presses against gets bent.
What about your battery in friends phone?
Other than flat battery or bent pins I can't think of anything else except something serious blew on the mainboard.
The battery works well in my friend's phone (has about 48% capacity). I have also tried his battery in my phone, with no success.
How can occure such a major hardware problem, without any reason?
Sorry, no clue. Random hardware failure? Crash causing hang and overheat? Someone messing with it whilst out of the room? Power surge? Got warranty?
12.
Not everything my friend
Just charge the battery for some HOURS or over the night. All the described symptoms indicate a low battery to me.
cheers
UPDATE:
Just managed to unlock a bootloader in that short period of time i can get to fastboot. But still no change, phone wont stay in fastboot.
greg17477 said:
Not everything my friend
Just charge the battery for some HOURS or over the night. All the described symptoms indicate a low battery to me.
cheers
Click to expand...
Click to collapse
Well, i actaully tried to leave it plugged over night. But i think it stops charging right after the red light dissapears, which happens after 15mins or so after plugging. Btw, i mentioned earlier that battery shows 3.7V when measured with multimeter, so the battery doesn't seem to be the culprit... or does it...?
12
your battery is drained below safe line....to 0%. They warn you NOT to update it with less than 60% battery FOR A REASON!!
Friends case she managed to charge ger asus 7 memopad with non-removable bat to 60% after 8 HOURS, because of a bloatware wakelock drainage to 0% after a factory reset....
If that doesn't work you have to either recharge the battery manually (something like car batteries, you have to unsolder the battery connector because the battery doesnt have 2 gold squares that touch the gold pins like the removable ones, or get a new battery.
Li-Po batteries should never be discharged to 0%, and can make problems if they are not removable (Nexus 4)
Mashed_Potatoes said:
your battery is drained below safe line....to 0%. They warn you NOT to update it with less than 60% battery FOR A REASON!!
Friends case she managed to charge ger asus 7 memopad with non-removable bat to 60% after 8 HOURS, because of a bloatware wakelock drainage to 0% after a factory reset....
If that doesn't work you have to either recharge the battery manually (something like car batteries, you have to unsolder the battery connector because the battery doesnt have 2 gold squares that touch the gold pins like the removable ones, or get a new battery.
Li-Po batteries should never be discharged to 0%, and can make problems if they are not removable (Nexus 4)
Click to expand...
Click to collapse
I did manage to charge it manually with two small wires and an old Nokia charger, when checking battery with multimeter after a few minutes of charging seems to increase voltage. But i guess if the chip on battery is fried there is nothing more i can do.
I will try to leave the phone on charger all night once again, see if that makes a difference, and update if anything changes.
take off the back, disconnect the battery connector wire and connect it again, put it on charger and see if things change
UPDATE:
Leaving it to charge overnight didn't have any effect. Any other suggestions than changing a battery?
Nah, sorry, but i am out of ideas. You basically tried it all :/
Darkis said:
I know there is a lot of threads about bricked N4's, and i can assure you that I have viewed each and every one of them, but i still can't resolve my broblem.
This whole brick situation happened after trying to update to Android 4.3 OTA update, the phone didn't complete the process and turned off, where red light of death happened.
So the scenario goes like this:
If i hold POWER button for ~30s when phone is off charger i only get a Google logo for 2 sec, and phone instantly restarts
Holding PWR+VOL-DOWN buttons when phone is off charger doesn't do anything
Plugging phone to charge (socket or PC) results in solid red light
Holding PWR+VOL-DOWN or PWR+VOL-DOWN+VOL-UP for ~15s makes the red light blink at a steady rate
While continuing to hold the respective buttons and pluging the charger off, and on again gets me to bootloader or download mode (depending on button combo) for ~2s and phone restarts.
I tried removing and inserting the battery 3 times. One time i got blinking red light when plugged the charger in. Second time i got solid red light and third time got solid red light again
I tried charging the battery directly for 15 minutes with old Nokia charger, and it resulted in something different(when i assembled the phone and tried to turn it on with PWR+VOL-DOWN buttons when charger was plugged off, i got to bootloader for 2seconds before phone restarted, i tried to boot second time and the same thing happened, but when i tried it third time i got nothing, just like before) so this was the first time i got into bootloader while not charging a phone.
*My PC seems to pick up the phone for a brief moment when it is in bootloader and starts installing the drivers. Drivers gets installed when i'm in download mode for that brief moment too.
**Phone doesn't get to the white or red battery icon while plugged to charge.
***Solid red light dissapears after charging for ~10mins, but phone won't do anything.
****When measured with a multimeter battery shows 3.7V
I hope someone will be able to help me with this, as it is frustrating as f*ck. I don't have a working warranty, so fixing the N4 isn't an option, and where i live phone repair prices are over the roof (ex. motherboard change for N4 costs ~270$ ).
Click to expand...
Click to collapse
I had the same problem. Kept it on the charger for a whole day and still only the Red Light.
Took it to a local shop and they said there is a short circuit in the antenna
Took it to the LG Service center and they said my motherboard is gone.
Both were costing a bomb to repair and still there was no guarantee.
IMHO, get a new phone.
Sorry
Have you tried charging it with a wireless charging pad? I got mine to boot after I did that. Your battery is drained and it doesn't have enough juice to charge itself.
12
Don't fall for the motherboard dead trick. Just a way to steal your money.... change the battery and never let it go to 1%
12
Hi,
I have a problem with my Find 5: I am stuck in a bootloop. The Oppo logo appears and after only a few seconds disappears, the phone vibrates and then the logo appears again. And this goes on and on.
I can get into recovery and fastboot but the real problem ist that my Find 5 will turn of again after maybe one minute into recovery. I tried it with CWM and TWRP. When I want to turn on the phone or get into recovery without being charged, nothing happens.
Before that I haven’t used the Find 5 because the USB-Port was broken and it would not charge. Even if the phone had a connection, its battery percentage would not increase at all. Then I ordered a new battery and a new USB-Port. I installed the new parts and suddenly the phone started to work again. I flashed a new nightly of CM 12 and installed some apps. The next day (it was charging over night) I unplugged the phone at 30%.
When I looked at the battery chart, I could see that the battery percentage did not decrease and also not increase while plugged into the charger. Then after some normal use, the battery percentage jumped from 14% directly to 0% and the phone turned off a few seconds later. When I charged it, it was stuck in a bootloop again. First it took about 30 seconds between the reboots and after the Oppo logo disappeared I could see that it i charging but after some minutes the reboots got faster (every 8 or 9 seconds).
So I am having the same problems with the new parts again but I don’t know why because it worked for some time…
It seems that the battery is broken again but how can it be? It was a brand new battery and it worked for one nearly full charge. Are there some common mistakes when replacing the battery that I could have made to cause my problem? I don’t know what to do and I want to try everything that is possible before getting a new phone.
Edit: Now I know where the problem is (or where it is not) but I have no idea what to do against it. The problem lies somewhere in the mainboard. Because when the charger is plugged in the phone will start to reboot again and again so the cable between USB-port and mainboard should be ok. But the battery is not charging. The phone worked with the new battery for a while because it was already charged when I built it in. And now since the battery is empty again I am experiencing the same problem as before again.
So does anyone have an idea? Where is the exact problem and can I fix it without spending much money on it?
Thanks for your help
Sam